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What of the above is tricky?
If you mean the power, you anyway need an adapter to 5V DC (5A/25W), and these are relatively standard.
What I am saying is buy for the region you live in. I like https://www.solosatoshi.com/.
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You need a DC adapter that is compatible with the region you live in, yes. The board itself is the same. I gave 2 boards that I bought in Europe away to friends in the US, there are no problems; they just needed to get the correct adapter.
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